PDF malware analysis — malicious · 99125c4846d09c4b

MALICIOUS

PDF

39.2 KB Created: 2020-11-06 12:48:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23

MD5: aba5a0cbb1742c5feb933a2dae462e63 SHA-1: 076b96aa1fcbe8a4d99ce09d7348fdd302b57bc4 SHA-256: 99125c4846d09c4b120c65e1ce5f2137e3a1ac336b0b4d364ce27607a1a0650f

76 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 4

Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK

PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
External URI info PDF_URI

PDF contains an external URL action
Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL

The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
URL https://trafficel.ru/aws?keyword=toyota+scion+xb+autotrader PDF link annotation
- https://cdn-cms.f-static.net/uploads/4370299/normal_5fa0bd1e1c91d.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4375891/normal_5f8a581ca7220.pdfIn PDF document text
- https://tekegalesi.weebly.com/uploads/1/3/0/7/130740489/3683425.pdfIn PDF document text
- https://dawanuma.weebly.com/uploads/1/3/4/3/134305997/9698627.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4376606/normal_5f8c9ea1a1686.pdfIn PDF document text
- https://takimibovejexi.weebly.com/uploads/1/3/4/5/134512521/zozowunolow-xugiwu.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4411701/normal_5fa38f6bda2f8.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4387421/normal_5f9e65902b505.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/7fe6d09d-40be-46ba-b927-b2bc752a8982/76118052840.pdfIn PDF document text
- https://s3.amazonaws.com/vezumobigodub/handbook_for_the_recently_deceased_shirt.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a74f68a3-be79-4833-8b40-7f76254502a1/how_to_replace_thermal_fuse_whirlpool_dryer.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00005a6f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5A6F	5160 bytes
SHA-256: `298a0636a348b9e4f2c190e8efe8c08a3efa52049bf70b033fd0b18be9dc7f3d`
`font_01_sfnt_off00006c15.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6C15	10732 bytes
SHA-256: `49ff8f73b7a891c8f2c636f5c850b32426e177b3590132a2a4e9361bbed452af`

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